Bộ chuyển đổi ATA VoIP Grandstream HT503

Ethernet Ports

2 RJ45 (LAN/WAN)

NAT/Router

Yes

DHCP

Client/Server

FXS Port

1

FXO Port

1

PSTN Pass-through Port

Yes

Voice Mail Indicator

Yes

Voice Codec

G.711(a/u-law), G.723.1, G.729A/B/E, G.726-40/32/24/16 and iLBC, T.38 fax

Remote Configuration

HTTP/HTTPS/Telnet/TFTP Provisioning

Telephone Interfaces

1 FXS telephone port (RJ11), 1 FXO PSTN line port (RJ11) with lifeline support

Network Interfaces

Two (2) 10M/100 Mbps ports (RJ-45) with integrated NAT router

LED Indicators

Power, WAN, LAN, PHONE and LINE

Reset Button

Factory reset button

Telephony Features

caller ID display or block, call waiting wither caller ID, flash, blind or attended call transfer, hold, call forward, do not disturb, 3-way conferencing

Voice Codec

G.711 Annex I (PLC) and Annex II (VAD/CNG format), G.723.1A, G.729A/B/E, G.726-40/32/24/16, iLBC

Voice over Packet

Capabilities

Voice Activity Detection (VAD) with Comfort Noise Generation (CNG) and Packet Loss Concealment (PLC), Dynamic Jitter Buffer, G.168 compliant Line Echo Cancellation

Fax over IP

T.38 compliant Group 3 Fax Relay up to 14.4kpbs, Fax Datapump V.17, V.19, V.27ter, V.29 for T.38 fax relay

DHCP Server/Client

NAT router

Yes, can operate in NAT Router or Switched Mode

Network Protocols

TCP/UDP/IP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS, DHCP, NTP, TFTP, TELNET, PPPoE, STUN

QoS

Support Layer 2 (802.1Q VLAN, 802.1p), Layer 3 QoS (ToS, DiffServ) QoS

IP Signaling

SIP (RFC 3261), SIP over TCP/TLS, SRTP, up to 2 SIP account profiles, symmetric and asymmetric RTP/codec in any call sessions

DTMF Method

RFC2833, and/or SIP INFO

Provisioning &

Management

TFTP, HTTP, HTTPS, Telnet, secure and automated provisioning system for large deployment, syslog

Universal Power Supply

Output: 12VDC, 0.5A; Input: 100–240 VAC, 50-60 Hz

Environmental

Operational: 32°–104°F or 0°–40°C ,Storage: 10°–130°F,Humidity: 10–90% Non-condensing

Dimensions (H x W x D)

25mm x 115mm x 75mm (when laying flat); 115mm x 25mm x 75mm (standing up)

Short and long haul

REN3: Up to150 ft on 24 AWG line

Caller ID

Bellcore Type 1 & 2, ETSI, BT, NTT, and DTMF-based CID

Polarity Reversal/Wink

Yes

EMC

FCC/CE, EN55022/EN55024 and FCC part15 Class B

Safety

UL